Choosing the Right Successor Trustee in 2026: Duties, Liability, and How to Pick Wisely

What a Successor Trustee Actually Does

When you create a revocable living trust, you usually serve as your own trustee while you are alive and well. The successor trustee is the person, or institution, who steps in when you no longer can, either because you have become incapacitated or because you have passed away. It is easy to treat this as an afterthought, a name you fill in near the end of the paperwork. That is a mistake. Choosing your beneficiaries and choosing your successor trustee are arguably the two most important decisions in your plan.

The role carries real work and real responsibility. Depending on the situation, a successor trustee may need to manage your finances during incapacity, gather and value assets, pay debts and taxes, give required legal notices, keep careful records, communicate with beneficiaries, and distribute assets according to the terms of the trust. They do all of this under a legal duty to act in the beneficiaries’ best interests, and they can be held personally responsible if they get it wrong.

It is worth pausing on that last point, because people often underestimate it. A trustee is a fiduciary, which is the highest standard of responsibility the law imposes. It means putting the beneficiaries’ interests ahead of their own, avoiding conflicts, treating beneficiaries fairly, and being able to account for every decision. This is not a ceremonial role or a simple favor. It is a genuine job with real legal weight, and choosing the right person for it deserves real thought.

The 2026 Environment Is More Demanding

Serving as a trustee has always been challenging, and in 2026 the environment is more demanding than ever. California has tightened notice and compliance rules, the state has built faster ways to review estates, and the expectation of a clean, well-documented administration has grown. A trustee who is disorganized or unaware of the rules can create problems that fall on them personally.

This does not mean a family member cannot serve. Many do, and do it well. It does mean that the job asks more than it used to, and that the person you choose should be prepared to get good guidance rather than improvise. When you pick a trustee today, you are choosing someone to operate in a stricter environment than the one that existed even a few years ago.

One practical implication is that the willingness to ask for help has become one of the most valuable traits a trustee can have. The strongest trustees are not the ones who assume they can handle everything alone. They are the ones who recognize when a question is beyond them and bring in an attorney or accountant before a small issue becomes a costly one. When you evaluate a potential trustee, consider not just whether they are capable, but whether they have the humility to seek guidance when the rules demand it.

The Qualities That Matter Most

The right successor trustee is defined less by financial sophistication than by character and reliability. The qualities that tend to matter most include:

• Trustworthiness and integrity, since this person will control your assets and must act honestly even when no one is watching.
• Organization and follow through, because the role involves deadlines, records, and paperwork that cannot be ignored.
• Fairness and levelheadedness, especially where there are multiple beneficiaries who may not always agree.
• Willingness to serve, since no one should be drafted into this role by surprise. Ask the person first.
• Availability, because administration takes time, and a trustee who is overwhelmed by their own life may struggle to keep up.

Notice that specialized expertise is not at the top of the list. A trustee can hire an attorney, an accountant, or a financial advisor for help. What they cannot outsource is honesty, diligence, and good judgment.

Family Member, Friend, or Professional?

Most people first think of a family member, often an adult child. That can be an excellent choice when the person is responsible, fair, and on good terms with the other beneficiaries. It keeps the role personal and usually avoids professional fees.

But a family member is not always the right answer. If your family situation is complicated, if there is tension among beneficiaries, if the person you would choose is not organized or lives far away, or if the trust is large or complex, a professional or corporate trustee may serve your family better. A professional trustee brings experience and neutrality, which can be worth a great deal when emotions run high. The tradeoff is cost and a less personal touch. There is no universally correct answer, only the right fit for your family.

A useful way to think about it is to imagine the hardest version of your family’s situation, not the easiest. If two of your children have a history of conflict, ask honestly whether the one you name as trustee could enforce the trust’s terms against the other without the relationship collapsing. If the answer gives you pause, a neutral professional may protect both the plan and the family. The point of naming a trustee is not to honor someone with a title. It is to make sure the job gets done well, even under strain.

Common Mistakes to Avoid

A few missteps come up again and again, and all are avoidable:

• Naming someone without asking them. Serving is a significant commitment, and a surprised trustee may decline or struggle.
• Choosing based on birth order or feelings, rather than fit. The oldest child is not automatically the best trustee.
• Naming co-trustees who do not get along, which can deadlock the administration and invite conflict.
• Failing to name a backup. If your first choice cannot serve, a named alternate keeps the plan from stalling.
• Never revisiting the choice. The right trustee ten years ago may not be the right trustee today, so revisit it as life changes.

Set Your Trustee Up to Succeed

Whoever you choose, you can make their job easier and protect them from avoidable mistakes. Keep your trust funded and your records organized, so your trustee is not starting from scratch. Consider leaving a letter of instruction and a simple inventory of accounts, advisors, and important documents. And make sure your trustee knows they are allowed, and encouraged, to hire professional help when they need it.

The goal is not to hand someone a burden. It is to hand them a plan they can actually carry out. A well-chosen, well-prepared successor trustee is one of the quiet reasons a good estate plan works smoothly at the very moment your family needs it to.

About the Author

Goodman Estate Law is an Anaheim based estate planning firm serving families throughout Orange County, including Anaheim, Brea, Fullerton, Orange, Placentia, Santa Ana, Tustin, Villa Park, and Yorba Linda. Attorney Brett Goodman focuses his practice on wills, trusts, probate, and trust administration, and he helps families choose and prepare the right successor trustee.

Sources

• Kenneth E. Devore & Associates – April 2026 Estate Planning Advisory (successor trustee selection; more demanding 2026 environment for non-professional trustees).
• The Estate Lawyers, APC – California Trust and Estate Law in 2026 (fiduciary liability; disciplined administration).
• Goodman Estate Law – The Step by Step Checklist for California Successor Trustees (live) companion.

Goodman Estate Law

Brett J. Goodman is the founder and lead attorney at Goodman Estate Law, based in Laguna Hills, CA. The firm specializes in Estate Planning, Trust Administration, and Probate, helping individuals and families create or update wills and trusts. With a focus on personalized, compassionate, and professional guidance, Goodman Estate Law ensures clients’ assets and futures are protected during every stage of estate planning.